Conclusion Intervention through unprotected perineum delivery technique can lower the labor pain in full-term primipara with no gestational complications and spontaneous delivery， reduce maternal perineal injury， without increasing 2 h postpartum hemorrhage and second stage of labor time. It also can improve the quality of obstetrics department and protection the safety of mother and children. So it contains clinical application value.

    【Key words】 Uprotected delivery； Labor pain； Perineal laceration

    本次研究主要是觀察和分析了临床上会阴无保护分娩技术的应用， 以为提高产科质量， 保障母婴安全提供一定的借鉴， 现将研究内容报告如下。

    1 资料与方法

    1. 1 一般资料 选择2015年7月～2016年7月本院接收治疗的120例无妊娠期并发症且自然分娩的足月单胎头位初产妇作为观察对象 ......